Home / 311,438.56-429,549.98-268,492.36

Finding the Fourth Proportional to 311,438.56, 429,549.98 and 268,492.36

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Solution

The fourth proportional to 311,438.56, 429,549.98 and 268,492.36 is: 370,316.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,438.56 : 429,549.98 = 268,492.36 : x
  2. Step 2: Convert to fraction form
    311,438.56/429,549.98 = 268,492.36/x
  3. Step 3: Cross multiply
    311,438.56x = 429,549.98 × 268,492.36
  4. Step 4: Simplify right side
    311,438.56x = 115,330,887,868.15
  5. Step 5: Solve for x
    x = 115,330,887,868.15/311,438.56
  6. Step 6: Final answer
    x = 370,316.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.